Asked by Keyuri Patel on Apr 29, 2024
Verified
Why is pH stability important for homeostasis?
A) There is no mechanism for buffering pH changes in blood.
B) Excess H+ disrupts hydrogen bonds, thereby destroying the cohesion between water molecules.
C) Buffers can only work properly within a narrow pH range.
D) Most biological molecules function optimally only within a narrow pH range.
E) Excess H+ facilitates hydrogen bonds, which disrupt the structural integrity of biological molecules.
Homeostasis
The process by which living organisms regulate their internal environment to maintain a stable, constant condition.
Biological Molecules
Organic molecules essential for life, including carbohydrates, lipids, proteins, and nucleic acids.
Buffers
Substances that minimize changes in pH by absorbing or releasing hydrogen ions, thus maintaining a stable environment in solutions, especially in biological systems.
- Differentiate the characteristics of acids and bases when dissolved in solution.
Verified Answer
AA
Amber AllisonApr 30, 2024
Final Answer :
D
Explanation :
Most biological molecules, such as enzymes and proteins, have specific pH ranges at which they function optimally. Any deviation from this pH range can result in disruption of their structure and function, leading to cellular dysfunction and disease. Therefore, pH stability is important for maintaining homeostasis in living organisms.
Learning Objectives
- Differentiate the characteristics of acids and bases when dissolved in solution.